WELCOME TO ZOOLOGY WORLD

The science or study of animal life. Together with botany, the study of plant life, it forms the
science of biology. Zoology is such a vast subject that most zoologists specialize or focus on the study
of particular organisms or taxonomic groups. tion of animals.

Human Anatomy

Human Disease

Semi-autonomous nature of mitochondria

Mitochondria contain all requirements of protein synthesis.

1.70s ribosome.

2.DNA molecules(rich in G-C ratio) to form mRNA and also replicate.

ATP molecules to provide energy.

The mitochondria can form some of the required proteins but for most of proteins,these are
depedent upon nuclear DNA and cytoplasmic ribosomes,so the mitochondria are called
semi-autonomous organelles.

According to endosymboitic origin of mitochondria were intially a free living.aerobic
bacteria which during to the process of evolution entered an anaerobic cell and become
established as mitochondria.This theory is supported by many similarities which exist
between bacteria and mitochondria.